Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 272 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a line lifted at a gap (c) a circle with M inside (d) one tall, one short bar
2. 2.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a dot where wires meet (c) a circle with M inside (d) triangle, bar and arrows
3. 3.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a dot where wires meet (c) a circle with A inside (d) two or more cell symbols
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) LED (c) motor (d) junction
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) wire (c) bulb (d) voltmeter
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) cell (c) LED (d) diode
7. 7.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) switch (c) wire (d) motor
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
11. 11.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
12. 12.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
13. 13.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
14. 14.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) bulb (c) diode (d) cell
16. 16.Which drawing is the symbol for an LED? (a) many long-short pairs (b) triangle, bar and arrows (c) a straight line (d) a line lifted at a gap
17. 17.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a small empty box (c) a plain rectangle (d) a circle with an X in it
18. 18.True or false: many long-short pairs is the symbol for a motor. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) junction (c) bulb (d) LED
20. 20.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
21. 21.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a small empty box (c) a plain rectangle (d) a straight line
22. 22.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a long and a short line (c) a plain rectangle (d) a dot where wires meet
23. 23.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) voltmeter (c) diode (d) cell
25. 25.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
26. 26.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a plain rectangle (c) one tall, one short bar (d) two equal parallel lines
27. 27.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
28. 28.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a plain rectangle (c) two equal parallel lines (d) one tall, one short bar
29. 29.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) diode (c) capacitor (d) battery
31. 31.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) triangle against a bar (c) two or more cell symbols (d) one tall, one short bar
32. 32.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
33. 33.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) one tall, one short bar (c) a dot where wires meet (d) a line lifted at a gap
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) resistor (c) motor (d) diode
35. 35.True or false: a small empty box is the symbol for a cell. (a) True (b) False
36. 36.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
37. 37.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) resistor (c) ammeter (d) diode
39. 39.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
40. 40.True or false: many long-short pairs is the symbol for a diode. (a) True (b) False

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids